Plagiarism Checker is a free online plagiarism detector tool. It is one of the best similarity checker software for students, writers, professors, research scholars and authors. Our sophisticated plagiarism detection software examines your essays, research papers, and articles to determine if your work has been plagiarized. If it detects duplicate content, it will notify by highlighting the sentence with a different color. The plagiarism checker report specifies copyrighted content along with source information. Our plagiarism detector digitally generates plagiarism percentage reports.